_ScreenCapture_SaveImage help saving image

ss()

Func ss()

    Local $hBmp

 

    ; Capture full screen

    $hBmp = _ScreenCapture_Capture("")

 

    ; Save bitmap to file

    _ScreenCapture_SaveImage(@MyDocumentsDir & "\Image.jpg", $hBmp)

 

    ShellExecute(@MyDocumentsDir & "\Image.jpg")

EndFunc   ;==>ss

 

 

so the code works my problem is it override the image and i want to rather save it as image1,image2 and so on. and also im not sure how to i can add a folder to it so atm is saving in mydoucments how would i save to a new folder in doc?

thanks for the help